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    System for refrigerant charge verification
    22.
    发明授权
    System for refrigerant charge verification 有权

    公开(公告)号：US10775084B2

    公开(公告)日：2020-09-15

    申请号：US15798081

    申请日：2017-10-30

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Hung M. Pham

    IPC: F25B45/00 ,  F25B40/02

    Abstract: A charge-verification tool is used with a charge-verification system to diagnose and remedy a charge condition. The charge-verification tool includes a device having a controller configured to communicate with a system controller in the charge-verification system and a display configured to display measurements and instructions to an installer. The device is a user interface and is configured to provide communication between the installer and the system controller in the charge-verification system. The controller prompts the installer to input charge-verification system information including refrigeration line length and diameter. The controller receives a subcooling temperature calculated by the system controller and determines whether the subcooling temperature is between a threshold and a target subcooling temperature. The controller displays an amount of charge to add to the charge-verification system based on whether the subcooling temperature is between the threshold and the target subcooling temperature.

    Diagnostic system
    24.
    发明授权
    Diagnostic system 有权

    公开(公告)号：US10697458B2

    公开(公告)日：2020-06-30

    申请号：US16036331

    申请日：2018-07-16

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Hung M. Pham ,  Nagaraj Jayanth

    IPC: F04C28/28 ,  F04B49/06 ,  F04B51/00 ,  F04C18/02 ,  F04C23/00

    Abstract: A diagnostic system for a compressor is provided. The compressor includes a compression mechanism and a motor. The diagnostic system includes processing circuitry and memory and may be operable to differentiate between a low-side fault and a high-side fault by monitoring a rate of current rise drawn by the motor for a first predetermined time period following compressor startup. The diagnostic system may be operable to predict a severity level of a compressor condition based on a fault history stored in the memory.

    Compressor with flooded start control
    25.
    发明授权
    Compressor with flooded start control 有权

    公开(公告)号：US10385840B2

    公开(公告)日：2019-08-20

    申请号：US14947169

    申请日：2015-11-20

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Hung M. Pham

    IPC: F04B49/02 ,  F25B43/00 ,  F04B49/20 ,  F04C28/06 ,  F04C18/02

    Abstract: A system and method for flooded start control of a compressor having a crankcase heater are provided. A control module receives sensed data from a sensor, determines a current rate of liquid migration into the compressor, and compares the current rate with first and second predetermined thresholds. The control module operates the compressor in a flooded-start control mode, including operating the compressor according to at least one cycle with a first time period when the compressor is on and a second time period when the compressor is off. The control module operates the compressor in the flooded start control mode when the current rate is greater than the first predetermined threshold, activates the crankcase heater when the current rate is between the first and second predetermined thresholds, and operates the compressor without the flooded start control mode when the current rate is less than the second predetermined threshold.

    Compressor diagnostic and protection system and method
    26.
    发明授权
    Compressor diagnostic and protection system and method 有权

    公开(公告)号：US09669498B2

    公开(公告)日：2017-06-06

    申请号：US14841058

    申请日：2015-08-31

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Hung M. Pham

    IPC: B23P15/26 ,  F04C28/00 ,  F25B49/00 ,  F25B1/04

    CPC classification number: B23P15/26 ,  F04C28/00 ,  F04C2270/18 ,  F04C2270/19 ,  F04C2270/80 ,  F25B1/04 ,  F25B49/005 ,  F25B2500/06 ,  F25B2500/19 ,  F25B2700/151 ,  F25B2700/1931 ,  F25B2700/1933 ,  F25B2700/2106 ,  F25B2700/21151 ,  F25B2700/21152 ,  F25B2700/2116 ,  F25D2400/36 ,  Y10T29/49353

    Abstract: A method is provided that includes installing a compressor in a refrigeration system and determining a condenser temperature difference using processing circuitry. The method also includes checking for an overcharge condition or a condenser fan blockage condition when the condenser temperature difference is greater than a high condenser temperature difference value. The method also includes determining a discharge superheat temperature using the processing circuitry and checking for the overcharge condition or the condenser fan blockage condition when the condenser temperature difference is less than the high condenser temperature difference value and the discharge superheat temperature is less than a low discharge superheat temperature value. The method also includes checking for an undercharge condition or an evaporator fan blockage condition when the condenser temperature difference is less than the high condenser temperature difference value and the discharge superheat temperature is greater than a high discharge superheat temperature value. The method also includes completing installation of the compressor when the condenser temperature difference is between the high condenser temperature difference value and the low condenser temperature difference value and the discharge superheat is between the high discharge superheat temperature value and the low discharge superheat temperature value.

    Compressor having a control and diagnostic module
    29.
    发明授权
    Compressor having a control and diagnostic module 有权
    压缩机具有控制和诊断模块

    公开(公告)号：US09310439B2

    公开(公告)日：2016-04-12

    申请号：US14033604

    申请日：2013-09-23

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Hung M. Pham ,  Fadi M. Alsaleem

    IPC: G01R31/28 ,  G01R31/34 ,  G01R31/02

    CPC classification number: H02P25/04 ,  F04B35/04 ,  F04B49/06 ,  F04B49/10 ,  F04B2203/0201 ,  F04B2203/0202 ,  F04C18/02 ,  F04C18/0215 ,  F04C28/28 ,  F04C29/0085 ,  F04C2240/808 ,  F04C2240/81 ,  F04C2270/03 ,  F04C2270/07 ,  F04C2270/19 ,  F04C2270/22 ,  F04C2270/60 ,  F04C2270/80 ,  F04C2270/86 ,  F04C2270/90 ,  F25B49/022 ,  G01R31/028 ,  G01R31/343

    Abstract: An apparatus includes a voltage sensor, a current sensor, and a controller. The voltage sensor measures voltage values of alternating current power supplied to a capacitor. The capacitor is electrically coupled to a compressor. The current sensor measures current values of the alternating current power. The controller is configured to receive the voltage values and the current values. The controller is configured to determine a first power factor value based on at least one of the voltage values and at least one of the current values. The controller is configured to selectively detect a first capacitor fault in response to concurrent determination that (i) the first power factor value is less than a first power factor threshold and (ii) a first current value of the current values is greater than a first current threshold. The first capacitor fault indicates that a capacitance of the capacitor has degraded.

    Abstract translation: 一种装置包括电压传感器，电流传感器和控制器。 电压传感器测量提供给电容器的交流电力的电压值。 电容器电耦合到压缩机。 电流传感器测量交流电流的电流值。 控制器配置为接收电压值和电流值。 控制器被配置为基于电压值和至少一个当前值中的至少一个来确定第一功率因数值。 控制器被配置为响应于同时确定，选择性地检测第一电容器故障，即（i）第一功率因数值小于第一功率因数阈值，并且（ii）当前值的第一电流值大于第一 当前门槛。 第一个电容器故障表明电容器的电容已经降低。

    System And Method For Calculating Parameters For A Refrigeration System With A Variable Speed Compressor
    30.
    发明申请
    System And Method For Calculating Parameters For A Refrigeration System With A Variable Speed Compressor 有权
    用变速压缩机制冷系统计算参数的系统和方法

    公开(公告)号：US20140123692A1

    公开(公告)日：2014-05-08

    申请号：US13845784

    申请日：2013-03-18

    Applicant: Emerson Climate Technologies, Inc.

    Inventor： Daniel L. McSweeney ,  Stephen M. Seibel ,  Hung M. Pham

    IPC: F25B49/02

    CPC classification number: F25B49/02 ,  F25B49/022 ,  F25B2500/19 ,  F25B2600/021 ,  F25B2700/2117 ,  Y02B30/741

    Abstract: A system and method for calculating parameters for a refrigeration system having a variable speed compressor is provided. A compressor is connected to a condenser and an evaporator. An evaporator sensor outputs an evaporator signal corresponding to at least one of an evaporator pressure and an evaporator temperature. An inverter drive modulates electric power delivered to the compressor to modulate a speed of the compressor. A control module is connected to the inverter drive that receives the evaporator signal. The control module monitors electrical power data and compressor speed data from the inverter drive and calculates at least one of a condenser temperature and a condenser pressure based on the evaporator signal, the electrical power data, and the compressor speed data.

    Abstract translation: 提供了一种用于计算具有变速压缩机的制冷系统的参数的系统和方法。 压缩机连接到冷凝器和蒸发器。 蒸发器传感器输出对应于蒸发器压力和蒸发器温度中的至少一个的蒸发器信号。 逆变器驱动器调制输送到压缩机的电力来调节压缩机的速度。 控制模块连接到接收蒸发器信号的逆变器驱动器。 控制模块监视来自变频器驱动器的电力数据和压缩机速度数据，并基于蒸发器信号，电力数据和压缩机速度数据计算冷凝器温度和冷凝器压力中的至少一个。

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